RackPrinter

What

• Reliable workhorse mounted in 21U rack

Heated chamber

• http://reprap.org/wiki/Heated_Build_Chamber
• heat source (need 40-80°C, typical operating temperature seems to be 50°C)
  • hair dryer
    • veverak's note: Personal experience is that hair dryer wasn't exactly happy that he had to run for a long time
  • hot air gun
  • light source
  • epic heatbed
  • combination of the above
• SSR
• insulation

Heatbed bed

• custom size required
• SSR

Frame

• 3030 alu from http://ehlinik.cz
• Bolted to rack
• Separate X/Y & Z stages
• angle brackets
• M6 hw

Motion

X/Y

Alternative I

• Alumimaker 2 style
• precision rods (M8)
• precision bearings
• shafts
• gt2 belts
• gt2 pulleys (20 teeth, 8mm bore)
• 0.9° steppers
  • need to sustain heated bed temperature

Alternative II

• supported rails
• ballscrews

Z axis

• 4x M12 rods
• 4x LMK12LUU
• 4x SHF12 12mm shaft support
• ALU plate

Extruder

• 2x bowden
  • drive wheel has to be located outside of the heated chamber
• full metal
• dual drive wheel

Hotend

• dual or 2 separate X gantries
  • Cyclops (90GBP), needs water cooling mod
• plastics
  • ABS
  • PLA
  • PVA support

Shoplift

Frame

• (need) 3030 alu from http://ehlinik.cz

Watercooling

• (available) water blocks http://www.aliexpress.com/item/Auminum-Water-Cooling-Block-40x40x12mm-Liquid-Cooler-Waterblock-radiator-for-GPU-CPU-cooling/32258639717.html

X/Y

• (available) 2x4 KP08 http://www.aliexpress.com/item/4pcs-8mm-KP08-kirksite-bearing-insert-bearing-shaft-support-Spherical-roller-zinc-alloy-mounted-bearings-pillow/1739080976.html

Z

• (available) 2x2 LMK12LUU http://www.aliexpress.com/item/Free-shipping-2pcs-LMK12LUU-12mm-long-square-flange-ball-bearing-bushing-12mm-linear-guide-rail-shaft/2050329095.html
• (available) 2x4 SHF12 http://www.aliexpress.com/item/Pack-of-4-SHF12-12mm-Aluminum-Linear-Rod-Rail-Shaft-Support-CNC-Route-New-E1Xc/1080335897.html

Links

• https://lesagegp.wordpress.com/2013/07/07/3d-printer-with-heated-chamber/